Suction device with a main filter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mobile suction devices face challenges in ensuring reliable protection of the suction unit from dirt entry and maintaining effective sealing to prevent contamination, leading to inefficient dirt collection and potential damage.
Innovation Solution
The suction device is designed with the main filter positioned between the dirt collection chamber and the suction unit inlet, allowing cleaner side air to flow through a sealing gap, and a clamping device is used to secure the main filter between the suction outlet and inlet housing, ensuring a tight seal and easy filter replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main filter is arranged in the vacuum chamber or dirt collecting space, then the suction unit can be protected from dirt entry, but the device complexity increases and the filter replacement becomes difficult
Solution Approach 1:
The suction device is divided into separate functional modules: a removable dirt collecting container that can be detached from the vacuum cleaner housing. This segmentation allows the main filter to be positioned in the suction path without requiring complex internal arrangements within the vacuum chamber, as the dirt collection function is separated into a standalone container that can be easily removed and replaced.
2Reliability
If a sealing arrangement is provided to prevent secondary air from flowing past the main filter, then dirt-laden air is prevented from entering the suction unit, but the ease of operation decreases due to difficult filter replacement
Solution Approach 1:
The clamping device provides dynamic sealing capability, allowing the main filter to be securely clamped during operation to ensure effective sealing, while enabling easy release and replacement when needed. The clamping force can be applied or removed as required, transitioning between operational sealing and maintenance accessibility.
Solution Approach 2:
The clamping device acts as an intermediary mechanism between the filter housing and the main filter, providing secure attachment during operation while allowing easy removal for replacement. This intermediary component simplifies the interaction between the user and the filter, making replacement straightforward without compromising the sealing effectiveness during use.
3Reliability
If the main filter is securely clamped in position, then the sealing gap is effectively sealed to prevent dirt entry, but the ease of manufacture decreases due to additional clamping mechanisms
Solution Approach 1:
The clamping device is designed as a separate, modular component that can be independently manufactured and then assembled to the filter housing. This segmentation allows the main filtering components to be manufactured separately with standard sealing surfaces, while the clamping mechanism is added as a distinct assembly step, simplifying the manufacturing process for each individual component.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration effectively prevents dirt-laden air from entering the suction unit, reducing dust and dirt particles, and simplifies the handling and disposal of the dirt collection container, enhancing the suction device's reliability and usability.
Implementation Method 1
the main filter retains particles and other dirt in the suction flow
Implementation Method 2
a seal is expediently arranged on the outer circumference of the main filter... Thus, no air can flow between the seal and the filter surface
Implementation Method 3
a suction unit for generating a suction flow
Data Source
AI summary
The invention relates to a mobile vacuum device (10), in particular a construction site or workshop vacuum device, which has a vacuum housing (21) and a suction unit (24) arranged therein for generating a suction flow (S), wherein the vacuum housing (21) has a suction inlet (27) for connecting a suction line (14) and a filter arrangement (26) and a dirt collection chamber (25) provided for collecting dirt are arranged upstream of the suction unit (24) in the vacuum housing (21), in which a negative pressure area (131) is formed by the operation of the suction unit (24), wherein the vacuum housing (21) has a dirt collection container (46) which delimits the dirt collection chamber (25) and which has an inlet opening (132) communicating with or forming the suction inlet (27) for the suction flow (S) to flow in and a suction flow outlet (60) for air to flow out to the suction unit (24).and wherein the suction outlet (60) of the dirt collection chamber (25) and a suction unit inlet (61) of the suction unit (24) are in flow communication via a main filter (49) of the filter assembly (26) for retaining dirt in the dirt collection chamber (25). In the suction unit, it is provided that an outer circumference (130) of the main filter (49) lies outside the negative pressure area (131) of the dirt collection chamber (25), so that any additional ambient air flowing into the suction unit inlet (61) from outside the dirt collection chamber (25) may flow into the suction flow (S).